compute the repetition of a string in a text file

Dear all, how i compute the repetition of a special string in a file txt for example the A.txt file have the following lines;

AAA 1

1

2

AAA 2

BBB 1

i would have the number of the AAA repetition which is 2

Thanks

Answer 1

[Cedric]

Your best option for pattern matching is usually regular expressions (regexp).

In this particular situation where the pattern is simple, you can go for a simpler solutions though, as follows:

 >> buffer = fileread('A.txt') ;
 >> n = numel(strfind(buffer, 'AAA')) ;

Let me know if the pattern is indeed more complicated than a simple string, or if you must differentiate 'AAA' from 'AAAA' for example or avoid matching 'BAAABBB'.

[Ferial Assmani]

Thanks, it work 10/10